When you multiply a same number but with different powers, you can simply add the powers together. So, in your question, add the powers -1 and -7 together.
7^(-1) x 7^(-7) = 7^(-8)
When you divide a same number but with different powers, you subtract the power at the top with the power from the denominator. So, -8 - (-7) = -1.
7^(-8) / 7^(-7) = 7^(-1)
So your answer would be 7^(-1).
Hopefully my explanation was clear?
We want to find one-half of the reciprocal of 7/sqrt(98). Let's write down an expression for this:
We can rewrite 98 into 
The square root of 49 is 7
This should be your answer. Let me know if you need any clarifications, thanks!
Answer:
x-axis
Step-by-step explanation:
Answer:
m = 5/2
OR
m = 2 1/2
OR
m = 2.5
Step-by-step explanation:
The y-intercept is 0 because you can add it to the equation and it won't change your slope.
